4x - 8, 4x just means four of x, and eight less means to subtract 8.
Answer:
The correct system of inequalities is:

Step-by-step explanation:
Since Samantha wants to buy at least 5 pieces of clothing, this means that the total of clothing she buys can be 5 or more, then the sum of sweaters and dress pants she have to buy is:

She can't spend more than the gift card, this means that the number of clothing pieces she buys multiplied by its cost must be less or equal to the card's value, so she has to spend:

Therefore the correct system of inequalities is:

Your answer would be (4x)(4x² - 2x + 3).
A = (20*16) + 1/2(20)(8)
A = 320 + 80
A = 400
answer
400 in^2
The answer is simple.
First, you must look what is the least among the list. In this case, it is 16x.
Then get the factors of 16x and they are (4,4) , (8,2) and (16,1).
Since you can't then divide it to 36.
Since you can't divide 36 by 16 and 8. You must eliminate them from the list of GCF.
2 and 4 are possible but 4 is the greatest Common Factor which can be divided to both 16 and 36.